import {Breadcrumb, Button, Card, Form, Input, message, Radio, Select, Space, Upload} from 'antd'
import {Link, useNavigate, useSearchParams} from 'react-router-dom'
import './index.scss'
import ReactQuill from "react-quill";
import 'react-quill/dist/quill.snow.css'
import {useEffect, useState} from "react";
import {createArticleAPI, getArticleByIdAPI, updateArticleAPI} from "@/apis/article";
import {PlusOutlined} from '@ant-design/icons'
import {useChannel} from "@/hooks/useChannel";

const {Option} = Select

const Publish = () => {

    // 频道数据
    const {channelList} = useChannel();

    // 路由跳转函数
    const navigate = useNavigate();

    // 提交表单
    const onFinish = (formValue) => {
        console.log(formValue)
        // 如果imageType和imageList.length不相等
        if (imageList.length !== imageType) return message.warning("封面类型和图片数量不匹配")
        const {title, content, channel_id} = formValue;
        // 按照接口文档，处理表单数据
        const reqData = {
            title,
            content,
            cover: {
                type: imageType,    // 封面模式
                // 新增时候做该逻辑
                images: imageList.map(item => {
                    if (item.response) {
                        return item.response.data.url;
                    } else {
                        return item.url;
                    }
                })   // 图片列表
            },
            channel_id
        }
        // 调用接口回调：不同接口，新增-->新增接口 | 编辑-->更新接口
        if (articleId) {
            // 更新接口
            updateArticleAPI({
                ...reqData,
                id: articleId
            })
        } else {
            // 新增接口
            createArticleAPI(reqData);
        }
        // 提示发布成功
        message.success("文章发布成功")
        // 跳转到文章管理路由
        navigate('/article')
    }

    // 图片上传
    const [imageList, setImageList] = useState([]);
    const onUploadChange = (value) => {
        setImageList(value.fileList)
    }

    // 切换图片封面类型
    const [imageType, setImageType] = useState(0);
    const onTypeChange = (value) => {
        setImageType(value.target.value)
    }

    // 回填数据
    const [searchParams] = useSearchParams();
    const articleId = searchParams.get('id');
    // 获取实例
    const [form] = Form.useForm();
    useEffect(() => {
        // 获取id，调用接口
        const getArticleDetail = async () => {
            const res = await getArticleByIdAPI(articleId);
            // 调用实例方法，实现回填
            const data = res.data;
            const {cover} = data;
            form.setFieldsValue({
                ...data,
                // 回填封面类型
                type: cover.type,
            });
            // 回填图片列表
            setImageType(cover.type)
            // 显示图片
            setImageList(cover.images.map(url => {
                return {url}
            }))
        }
        // 调用函数，编辑文章才调用
        if (articleId) {
            getArticleDetail()
        }
    }, [articleId, form])

    return (
        <div className="publish">
            <Card
                title={
                    <Breadcrumb items={[
                        {title: <Link to={'/'}>首页</Link>},
                        {title: `${articleId ? '编辑' : '发布'}文章`},
                    ]}
                    />
                }
            >
                <Form
                    labelCol={{span: 4}}
                    wrapperCol={{span: 16}}
                    initialValues={{type: 0}}
                    onFinish={onFinish}
                    form={form}
                >
                    <Form.Item
                        label="标题"
                        name="title"
                        rules={[{required: true, message: '请输入文章标题'}]}
                    >
                        <Input placeholder="请输入文章标题" style={{width: 400}}/>
                    </Form.Item>
                    <Form.Item
                        label="频道"
                        name="channel_id"
                        rules={[{required: true, message: '请选择文章频道'}]}
                    >
                        <Select placeholder="请选择文章频道" style={{width: 400}}>
                            {/* value 为传输给后端的字段 */}
                            {channelList.map(item => <Option key={item.id} value={item.id}>{item.name}</Option>)}
                        </Select>
                    </Form.Item>
                    <Form.Item label="封面">
                        <Form.Item name="type">
                            <Radio.Group onChange={onTypeChange}>
                                <Radio value={1}>单图</Radio>
                                <Radio value={3}>三图</Radio>
                                <Radio value={0}>无图</Radio>
                            </Radio.Group>
                        </Form.Item>
                        {imageType > 0 && <Upload
                            name="image"
                            listType="picture-card"
                            showUploadList
                            action={'http://geek.itheima.net/v1_0/upload'}
                            onChange={onUploadChange}
                            maxCount={imageType}
                            fileList={imageList}
                        >
                            <div style={{marginTop: 8}}>
                                <PlusOutlined/>
                            </div>
                        </Upload>}
                    </Form.Item>
                    <Form.Item
                        label="内容"
                        name="content"
                        rules={[{required: true, message: '请输入文章内容'}]}
                    >

                        {/* 富文本编辑器 */}
                        <ReactQuill
                            className="publish-quill"
                            theme="snow"
                            placeholder="请输入文章内容"
                        />
                    </Form.Item>

                    <Form.Item wrapperCol={{offset: 4}}>
                        <Space>
                            <Button size="large" type="primary" htmlType="submit">
                                发布文章
                            </Button>
                        </Space>
                    </Form.Item>
                </Form>
            </Card>
        </div>
    )
}

export default Publish